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ArrayListDemo.java
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43 lines (38 loc) · 1.06 KB
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import java.util.ArrayList;
public class ArrayListDemo {
public static void main(String[] args) {
// String arr[]=new String[5];//normal array size fixed
ArrayList<String> Name=new ArrayList<String>();
// arr[0]="aman";
// arr[1]="aman2";
// arr[2]="aman3";
//
// for (int i = 0; i < arr.length; i++) {
// System.out.println(arr[i]);
// }
// //or
// for (String string : arr) {
// System.out.println(string);
// }
System.out.println(Name.size());
Name.add("Aman");
Name.add("Rohan");
Name.add("Rohan1");
Name.add("Rohan2");
for (String string : Name) {
System.out.println(string);
}
System.out.println(Name.size());
System.out.println("----------------------------------------------------------------");
// Name.remove(); error no such method (default)
Name.remove(2);
Name.remove("Rohan");
Name.add(2, "sujata");
Name.add(3, "sujata1");
Name.add(4, "sujata2");
Name.add(5, "sujata3");
for (String string : Name) {
System.out.println(string);
}
}
}